grammaticality - When should you repeat the same subject in a compound sentence?

I'd like to know when it is required to repeat the pronoun after a clause or an interjection within the same phrase.
For example, which of these two phrases would be considered correct:

1. I've recently sold my first book, a period drama which I've written years ago, and I have another book optioned.




2. I've recently sold my first book, a period drama which I've written years ago, and have another book optioned.

Notice the second version doesn’t say I again. Is that still grammatically correct?

Answer

The second option seems better. I would also like to suggest a change. " I've recently sold my first book, a period drama which I wrote years ago, and have another book optioned.
To address your first concern, you can use an additional 'I' , it's not grammatically incorrect. It's just that in English we try to minimise the repetition of the same word in a sentence as much as we can.